25452143293 has 2 divisors, whose sum is σ = 25452143294. Its totient is φ = 25452143292.

The previous prime is 25452143251. The next prime is 25452143347. The reversal of 25452143293 is 39234125452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20085408729 + 5366734564 = 141723^2 + 73258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25452143293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25452143243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12726071646 + 12726071647.

It is an arithmetic number, because the mean of its divisors is an integer number (12726071647).

Almost surely, 2^25452143293 is an apocalyptic number.

It is an amenable number.

25452143293 is a deficient number, since it is larger than the sum of its proper divisors (1).

25452143293 is an equidigital number, since it uses as much as digits as its factorization.

25452143293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 40.

The spelling of 25452143293 in words is "twenty-five billion, four hundred fifty-two million, one hundred forty-three thousand, two hundred ninety-three".